EP 1549799 A4 20051109 - GLAZED PAPER WEBS
Title (en)
GLAZED PAPER WEBS
Title (de)
GEGLÄTTETE PAPIERBAHNEN
Title (fr)
BANDES DE PAPIER SATINE
Publication
Application
Priority
- US 0328385 W 20030910
- US 40918602 P 20020910
- US 40922902 P 20020910
- US 65713303 A 20030909
Abstract (en)
[origin: WO2004025022A1] Provided is a process for preparing a smooth and glossy surfaced paper web. The process comprises subjecting the paper web to shear by using calender rolls driven at different speeds or calender rolls with different diameters. The resulting paper has a totally different structure than the original paper, as it has a much smaller void structure and a much higher degree of bonding between the elements of the sheet. The process is particularly applicable to improving the electrical insulation properties of an aramid paper web.
IPC 1-7
IPC 8 full level
D21G 1/00 (2006.01); D21H 13/26 (2006.01); D21H 25/00 (2006.01)
CPC (source: EP US)
D21G 1/00 (2013.01 - EP US); D21H 13/26 (2013.01 - EP US); D21H 25/005 (2013.01 - EP US)
Citation (search report)
- [XY] DE 2543228 A1 19770331 - VOITH GMBH J M
- [Y] US 3610137 A 19711005 - BRAFFORD DONALD A
- [X] US 4128053 A 19781205 - KANKAANPAA MATTI
- [X] US 4089738 A 19780516 - KANKAANPAA MATTI
- [XY] US 5667900 A 19970916 - KATO IPPEI [JP], et al
- [Y] US 3957573 A 19760518 - MIYAMOTO HARUO, et al
- See references of WO 2004025022A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004025022 A1 20040325; AU 2003266020 A1 20040430; CA 2498577 A1 20040325; EP 1549799 A1 20050706; EP 1549799 A4 20051109; JP 2006510826 A 20060330; MX PA05002637 A 20051026; US 2004140075 A1 20040722; US 2006096728 A1 20060511; US 6998019 B2 20060214
DOCDB simple family (application)
US 0328385 W 20030910; AU 2003266020 A 20030910; CA 2498577 A 20030910; EP 03795681 A 20030910; JP 2004571975 A 20030910; MX PA05002637 A 20030910; US 31165805 A 20051220; US 65713303 A 20030909